15% off your first subscription blood test

PCOS blood test

Learn if you might have polycystic ovary syndrome (PCOS) and monitor this condition. Get fast, accurate results with personalised GP advice.

£135.00

per test

Have a nurse take your sample - pay £60 when you book

After buying your test, please contact us on hello@thriva.co to organise your appointment

Free delivery
Test arrives in 1-2 working days
Results in as little as 48 hours

Rated “Excellent” based on 2,465 reviews

How can a PCOS blood test help you?

Learn if symptoms like irregular periods, acne, difficulty getting pregnant, or excess body hair (hirsutism) might be caused by polycystic ovary syndrome (PCOS).

This test checks for hormonal imbalances — like high testosterone levels. If they're high, and you have either irregular periods or an ultrasound scan confirming polycystic ovaries, PCOS can be diagnosed.

PCOS can increase your risk of diabetes, high cholesterol, and thyroid disorders. A PCOS blood test allows you to check this risk.

What's included in this blood test?

Advanced Testosterone (total and free)

A main feature of PCOS can be high testosterone levels. This can lead to symptoms like irregular or absent periods, excessive hair growth on your body, weight gain, acne, and difficulty getting pregnant.

This affects:

Energy

Fitness

Long Term Health

Mood

Sleep

Weight

Follicle-stimulating hormone

Follicle-stimulating hormone (FSH) helps your ovaries to function normally and plays a key role in egg production and ovulation. If you have PCOS, you might have a raised LH:FSH ratio.

Luteinising hormone

LH plays a key role in reproduction — it helps to regulate your menstrual cycle and peaks just before ovulation, triggering an egg release from the ovary. In PCOS, you might have a raised LH:FSH ratio.

Standard Thyroid Profile

Thyroid disorders can cause hormonal imbalances — leading to symptoms like weight gain, low mood, anxiety, depression, and difficulty sleeping. A thyroid disorder can also cause issues with your menstrual cycle and fertility.

This affects:

Energy

Long Term Health

Mood

Weight

Vitamin D

Vitamin D deficiency is common in people with PCOS. Optimal vitamin D levels are linked to improved insulin sensitivity and an improvement in PCOS symptoms. Low vitamin D levels have also been linked to worse PMS symptoms and more painful periods.

This affects:

Energy

Fitness

Long Term Health

Mood

Sleep

3-month glucose (HbA1c)

Between 50-70% of people with PCOS have insulin resistance — leading to raised blood sugar levels. A HbA1c test measures your average blood sugar levels over the past 2-3 months. This can help you monitor your risk of developing prediabetes or type 2 diabetes.

This affects:

Energy

Long Term Health

Sleep

Weight

Standard Lipid Profile (Cholesterol and Triglycerides)

A cholesterol profile test will look at the different types of fats (lipids) in your blood. This is useful to monitor if you have PCOS as this condition is linked to out of range lipid results (dyslipidaemia). Dyslipidaemia is linked to an increased risk of heart disease.

This affects:

Long Term Health

When should you do this test?

The best time to do this test is on day 3 of your cycle (day 1 is your first day of bleeding) — this is when your results can be accurately interpreted.

If you have irregular periods  — we recommend waiting until you have a period to get the most useful insights from this test.

See more FAQs

PCOS blood test infographic when to do your test

How it works

Do your test at home

Your test kit arrives in 1-2 days with instructions on how to take your sample. Then free post it back to the lab.

Fast, accurate results

You'll get a GP-reviewed report and personalised recommendations to improve or maintain your results.

Support your hormones

From lifestyle tips to dietary advice or premium supplements, follow your personalised advice to support your hormonal health.

Hone in on your hormones

“Polycystic ovary syndrome (PCOS) affects around 1 in 10 women in the UK. Symptoms differ from woman to woman, so checking your hormone levels is essential."

— Dr Macarena Staudenmaier, MD, MSc

Clinical Innovation Lead at Thriva

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